Form for molding concrete and like structures



J. CHRISTIE ET Al.

FORM FCR MCLDING CONCRETE AND LIKE STRUCTURES Filed Oct Tlf reigned oei. `ie,y i923; 'f

U ii@ JloiN oiiiersvrrn,

1 "'FoRiiI For, Morning Gonone-*rie erin :trifle"sreioofrnRies.v

or NORTH oeie'ifroii; erin ALEXANDER Wrox; vororaiii, e eosrneiiie. t I

n; Lene, or*v Erisrriiiii;

Application ymed koeieiflie*1922;1 eeliai rio.Vv 533,562 1 4To'jvaZZ wholmyzr't mayzlcocftoernl'g. c Be itQknoWn,that-Welorrii CHRISTIE, e

`fflrelend,'end .fi residentoitlv tliepostel diso YMelbourne Y Stte of Victorin,Commonwealthof Ans-lV traliv (Whose n'l 1 po'st-oicel addressv is 5:33 Lygon Street, in the said postal" district of.

l10 of NortliCarlton), and-ALEXANDER RICHARD LnNGgje, subject, of ytlie VKing oAG'reatQBritein sind ireland, .andferesident oi' "tlielpostel district of y Fileternwiclr,` ai suburb 'of the city of Melbourne, Vin itlie k1 county of Bourke,

O-rrong Road., initlieQSeid; postalfdistrict oi? f V'E'lsterniyick), have `invented 'Certain new Y. end useulimprovedv Form @for Molding, 29V Concrete and like Striicturee7A oic y. whichV the 1 'Yiollowing etV pspeciicatiori.` n n I n Y This invention relates toorms rorinold- V'ingY structures off-concrete or. like materiel and its object is' to provide @new ytype `oi. 25 Vcollapsible oriii of 'figportable' n nature .and

V-WliichVK maybe easily convertedto any de sired sli'ape andfni'ey'be' readily and inil fpoint in t ie'i'iioldrWall.Y

; nutely aid'iistedjinv lengthr` any desired.

for the. molding of kkconc-rete .biiilding'e in yconcrete" pipes, -slabsykeewer `channels'eind. various otlier artieles'oit :i p-re-castriatiire.'

By the' invention a'. greet einoiiiitoic labor and' materiel' k involved in fferecting and, dismantling'tlie n siial. iyoodeniornis is'k slavedrwhilstrattlie saine ktime the inVentioiik Vis Y'capableY of molding ourves,' cornices, iillets,'arigles` `and various other intricate or l irregular/*shapes which limite' vhitherto 'been' z iriipraoticable or extremelyi-idiliciilt to vvnee` gotiate with the forms ,at v i;ireeent inuse.

5 tinct adif'antege of being readily ooliepsed intona Very small spaeeiorftraiisport and storage purposes.v

Sttte 'oic V'ictorieJj 'VConinionwealtli of lAirs-2." Vtrollen(Whose post-oliice address ie 98 The inv'eiition is particiilerlyfsiiiteblo Moreover alsingle'kform or set of foriiisfin Y The, inventionconsiste,breiiy inevseriee" or" substantially parallel metalgor other Asuitk ableslnts or bers 'preferably 'of approxi` 'nietelyriglitengled or Veliepein cross secf` Y. 5f trict ofNortli Carlton, aeiibiir'b--Lotlie oi'tyl in "the ,ooiin'ty 'of Bourke,

tion to tliiiefprovideV two side'sinfdififerent ily yconverted toivaiiy desired Shape.` Prefone or inoreoi the Slateorbars to'biing 'plaiieg these sletsprfbirs "being piyotallyd connected together to Ythereby'V 'constitute a @ilegible `cbziii'i-lilre iforni Wliiclima'y'be reed# 60. l

lthe "chain-like yforni may be. Yrespectively desired point ink'tlieyiiell of they nioldz Tliejflezgible chainlilre forms inaccord-V Lence'witli the invention maybe employed I' throiigliout.@moldl Wall or only Wlier'e're-rk quired* i tieney of the ys'triicti'ire fniey, thenbe molded by ordinary sflieet inetel YorV other suitable vforms.' je Y y' y l The following ydescription is directed to] el'sniteble practical enibodinientof theirishortened or lengtlieiedpiii accordeiice ,yirtlji:`

certain reqiiiremeiitei, iniiiiite kadjiist-,y Yiiiento the ljengtliy and kshape of the ifiexible Yform may thus be readily, obtained at any A- 'I5` tof*produce curves7 angles vvor other' fspecielsliopes, The straight Lorgplain por-I Veiition butit is to be kdistinctly understood tliet lyziiious elterations iiiodiiicetioris yand" additions be incorporated iiiftlie eppoi.

, eierringto .tliedraiiiiiig's which "ior'rn' part oftliis speciczitioii;

Figure 1 isal pertgksectional yiew of 1a por,-

tion vof ythe improved collapsibleV vforni looked at from the nds' of the parellelslete Qorfbars.

i* igiire vis e side elevation looking` in. tlie directionfoi' the arrow in Figure 13 parte being brolreii away for lcpoiiveiiienceV of lilz'liietration.

585 fratrie `vfitlioiit departing from 'fthe spirit and scope of the invention as c defined by tbe.. ap endedclainis.

tlie improved forni in position on' opposite'ilrl sides of` thewell. Parts are broken away ioofl y Figurefl-"is: 'a trensyerser section taken! tliroiigli the `'Weill of a building and showing tion.

andY omitted for convenience of illustra Figure 5 isa detail view` of a suitable' Figure 6 is `a vperspective view ofv a tie piece or strap which mayV also be employed A lto hold together the forms at opposite sides of a Wall. Y Y l Y Y Figure 7 is. a perspective view of one wot' the connecting links byfwhich theparaliel f f slats or bars are iiexibly connected together.y

p Figure is aperspective 'detail view of ai iastening device which may be employed:

to .attach the improved formsfto ordinaryY forms `or' for like purposes with yan ordinaryyfoiiii and n illustrating lioviI the fastening device lseen inFigureB may. be employed. Y

Figure 1 0 is aY diagrammatic plan slioiving the inventionin position to Inoldthev curved portio'nffoif a. `vWall -in conjunction` With ordinary or plain iioinis Jfor Vinold'y srtraipglit1` 'parts thereof. UTliej ing V,the p concrete material is iiidicated by' the crossV hatching oii'the upper side ofthe figure.

Figiire'llvis an; end vie'w illustrating hoiv vtioi'i of archesandvthe like, y l y Figure 12 is a side view of Figure 1l.

The `.invention 4comprises a plurality` of 13g 4substantially parallel f adj oiningr` slats jor bars'o'fjany desiredilength. lThese slats" are preferably constructed 4of light butY strong metal of approximately right angled kori/*shape in cross seetiointhiis providing each slat or'bar W'ithrftivo longitudinal or vertical side members 2 and 3 disposed ink dili'erentrelative planes.` kThe *side mem,- "bers 2 and 3 'are preferably of relatively dilerentividtlis in cross section'as shown fpermitting` ofthe extension or contraction 50 of tlieflength" of the forni` or mold` Wall to Edfand eitherofsaid sideinenibers is adapted the attitude of the respective slatifthedii'- to form` partpo theimold'ivall according to ference in Width of the tivo side members suit requirements. n

The slats are pivotally connected toget her preferably at their )ends vby connect. ing links'fl'v or the like ivlierebyrtlie chain vvof slatsor bars may be converted intoany desired shape.` Said links areprovidedat each eiid with 4holesr 6 'ivliiigfli are pi'e'jci'- ably elongated in the direction oi, the length of the links and are adapted to accommodate connecting pins 7 and axially coinciding;

locking screwsS Wiieh exteiidlengthivise of the slats vand are -adapted vto y connect same Ifpivotallytogether and also form. tension- *infr` rods rwhich extend from endV to ,fend

ofi-the slats so that bv tifflitenine' on said screws the slats may beflocked rigidly to- Vfinodated"betweenthe side iiiembeis)J y 9 is -an' external" sideelevatio'n showingfthe Junctionfoii'` the improved Jormv Y p .orut'urned about the'axis of the invention may'- be applied to the forma-y `and also adapted to accommodate the aforesaid connectingfpns and screws 8f The latter. may bepi-ovidedivith squared heads 13, slots or the like'itor: turning and their y inner. ends may screw Ainto threaded holes 14 in stationary blocks orl nuls 16 acconti,-`

3 .of Jpheslats adjacent. th'eends-,thereot shown. These blocks or'iiutsserve 'to cord' le the'. ins 75 andscreivs `lSt'oOether so as i VC to form continuous .tensioningroilsfas aforesaid Whereby thefslatsx-inay be lo-zffkeilk "ifrci'ii one end by tightening oiitlielocking'y screws The blocks oraiuts 1G alsopositively prelvent thevslats turningv in'relation to their ats or bars are connecting pins whenr ilie latte'iz'fare conAA l gti flexibly connectedtogether and by Ymerely sla'ckening the requisite 'lockiiijgi screws 'any desired vslat or l*slats 'may beieversed 'iride or n i'- piii to thereby bringr either iii rovv side member into position' to i'oi'm the y incid,l Wall ras ilesi-red. The Slat or' slats maybe then lockedy by tightening on the locking;r 'scieivs and rthe i'liisli outer YiacesV if y i'fontinuousv mold wally itbeingV evident that the holes of the slat sides V`then form a loe 1Q in the' slat .endsV are disposed vat 'an eqiial distance 'from vboth side `nieinbers 2 and il as seenY in' Figure lfZ/so that the louter-'faces` i7 thereof lwill iie i'liish ivith each other' as in TFigure l iijrespective'oif which pari'.iciilai`y side member is in use., Y* elongated holes (i iin thelinks tliepa'rallel lily reason-oi tile 1 slats or bars may be moved towards or Jfrom each other 'to take up or'v entendjtlie length noV oi? the chain in accordani'reivith theturning',V

of the slat or 'slatsf'lly the same means slight openings or vslits 'may' y.be left between*V the slatsr to permit oit the exudation.

of surplus moisture 'tronifthe concrete.

At suitable intervals' in the length loi the chain-form the links may bev provided with lugs 18 having rectangular or'other siiitable 'openings lQtO'receii'c the opposite ends 2l of suitable clampingdevices 22 `JiliichV are adapted to bridgeftlie space Qbetween the inner land outer forms of a ivall or thelike and liold said forms 'together in proper spaced relationship. Said clamping devices mayy eachv coi'nprisetivo relatii'el'y telescopic desired With'a handle 26." I

As an example of the use of the apparatus yinconstructing a Wall tlie'chain forms are iso f arranged .in the desired,` relative. positions with-theparallel slats orbars extending ver` tically or otherwise according. `to ,circumf stances, thevformsbeing held together in desired 'positiongby the clampsf22 and' by tie pieces or straps 27 extending transversely between the forms atthejupper and lower ends' of the `slats as in-Figure 4. `'.lhese tie f pieces are preferably provided nesrtheir ends With holes 28 5to accommodate-the connecting pins? and theyY may be tapered. to

permit of easyiwithdrawal kfrom the Wall after molding'.l When one .portioniotthe Wall has been/thus erected inthe moldingf space 23 a i'rtherrsection maybe molded by additional forms in accordance With the invention or. 'in the case of straight 'Walls'v plain sheet metal .orl other suitable forms 29 may be employedywhilst the Aimproved collapsible forms are used only at corners'. angles and otherdesired points;` ln the.; above mannerthe -moldingfothewall may be completed for a certain. height and Vthe forms Aat the startingfpoint inay-thenribe removed' and raisedl to formi another tier or higher section of the walhorin the event of the rst section of the v Wall not having Y completely set the forms maybe' leftthere-y on and additionaly forms placedinsuperimposed position on the lower forms as'. in.

. vFigure 4;., The building up of thewallmay be thus continued', Athe superimposedfiorm units-bang united if desired byi'extendedV lscrews' or connectingpinsl which passv upwardly through' .theycoinciding holes .6

and l2 in the aioresaidl linksrand the Webs or .end members @l1- oil-fthe vslats,[thereby forming conjunction With f the screws Y 8` Vand units.flfcontinuonsl tensioning yrods* .Whichextend throughout Vthrejheight nii the' superimposed yforms gandgpermit v the.r slats to:

be locledytogetherfas before kinentioned.. j Air spacesor cavities maybe'formedgin lthe Wall or structure byfnieans Vofrcollapsn` ibl e cores-- constructed' i Vcores .may be readily-.removed atermoldi iusted in addition to the adjustabilityot its length byy the turningV oftheslats about 'the axis of their connectingspins and adjust-V` mentor the latter intheelongated'.holes.6 `Y

fwise as desired. p f

lf desired theV slatsl may be vtelescopicfor I' adjustable in their length so-thattheheight,

infr and f used as n l externalv forms or other or Width of the hain of slatsma-y be edf aforesaid. V i .v

To attach theimpro'vedlforms to thefordi nary or plain terms 29 specialfasteningdef` vices such as seen inFigure y S'may be ernploj'fed. These fasteners vare constructedo'c Wire ortho like and comprise helically` coiled lportion 32 similar to acorkscrem; and a handle or'finger vportion 33l by Whichy the coiled part 32fin'ay be screwed into respectively.

nected and may befadjusted' lengthwise ot l y f 110 collapsibleformfor moldingfcon; l crete 'and likefstruotiires comprising a Sie-" V 'rom a chain-formi Y `in accordancezwith thefinvention. These.

beAll vcoinciding holes 3 4 and '36 inadjoining parts of the chain"fornil and the ordinary form members A2 and oi the slats and th'e'ad-l jacentedge portionor frame' 37 ofthe yplain sheet metal form 29 as seen in Figure 9.

ln thejformation of'jarchesand the'lilre the improved form` besupported bfi-A -radius rods or the v like indicated at 38h15 F'gures 11 'and l2; These radius rods may* be'ftelescopic orla'dj'ustable in length, set

the yrods 38 may beacaVV cross'harfl and mayvrest on. anjj,7 conabil'dtjfoi the radius vrods SSthe chainv yfern `tightening on the -set screws 39and the lool;-

erection. and dismantling ot the'usu'al wood'- en' forms''or arches'f'and Y' the ylike is thus" eliminated. p

Suchf'coin'ciding holes; may pass, Ltor instancdthrough one of the side f may be set .to any desired Vcontour and bj. j

L v ing screws 8 thefs'lats vof the form may be j u locked r1g1dlyinthe desired position to f 'xterm 'the mold. It Willbeseen that the tim@ labour and material involvedxin the Llnavingfnow described our invention what Y Wev claimas newgand desire to secure bv g i. collapsible :torm l.for molding 'confVVV crete and lilreg structuresA comprising va series 'Letters Patent isz-f'- y jstantiallyfpar'allel slats orbar's. links'V 'iieizibly uniting said slats, saidlinks hav-Y ing' holes therethrough Whichfare elongated yin thedirectionoii Ythe length of the links and` connecting pins 'passing-through said elongatedholes whereby the 'slatsare con;

links 4andf,connecting pins :pi-totally, connect- .i saidfslats together', said connecting pins movement' t'or the `purpose set kforthpi creteandj like vstructures comprising a series of,r substantially parallel slats or hars, iinlrsconnecting said slats together,y connectpins pivotally attaching )the slats to ltlnelinls and `Vvlc'iclzing`- screws extendingy covatriallybi the yconnecting pins at theends thereotj and `adapted to contract the links against the ends 'of the slatsfor thelpurf pose set forth.r 4f. 'A1 collapsible"y form V'for moldingy con- I'A collapsible form formolding' consg disposed Vlengthwise of the y slats and 1 f apted to formtensioning rods 'whereby' v ll"l`il?"7l0rrl kclao'.' l

(sr-efe uid like siriietures comprising@ se#` Aries of substantially parallel slats or'l f e fiks ,and vcofnneotirigfpins plotally iinirir lie' slats nifl lockingfscrewspassing throng l :oinciclino holes in, the links-md thev eno.

.,ecli with mist! the tiirniiiglieeds adapted le press :vf subsaiitially pzrrzillel slats or bars' rrzxkligecl-'i'ii jiixfcafposrtionarid pivotnlly' eoliiieeed together, Ysaid sles 'being ind" i'flii ally m'icled Willis plurality of sides Crispos'ecl ,i ai K ereit' planes mid .either of v vliielrsides iririr'tlie `mold Wall byftiiiliiiigtlie slats Ut irlierir luifels for elle purpose soir) substantisilly perzillelslalis or bers' srzmgedfinjux'nposition angl l g'iiife'relly 'i'i'eceel 'together sniil slzis' being' 'of sul); xinl'ilxlly 4rightfan'gl'ecl yslinfpek vin cross vsem Voir tlierebyl forming. two sigle in'emliersizl whe respecV side members being; ofelifferenY wills jeolliipsible formflor molding eo-ni eend like :sruetures Coiriprisinge seisf i sulrseiitially parallel Vslats or o'. angular shape in eross'seetionylinks :url

Connecting" plus; :pivotally' uniting, said slats,

e'riiiallythreaded blocks or uiiis disposed "on liliev connecting kpins and between'tlie' fmgallireniembersoli the respective 'slats nml lsf-king screws passing .through the' links Y, T

f nml iiito seielguiiits whereby me links muv eontrsoteflj(against the eix'ds of the slats s iiil. lie letter are preveted from` turning rlrollin coril,s of substantially@arallel slats or bars olli siibszi-iitially rightra-igled slm-pe in cross section7 illusr providing each Slat` with lire siflejmem'bers disposed* in Clierenti planes,

Ylinks lor the purposel set'i'fortli.. L V'Collapsible 'form "rforjmolclmg" soir f structures comprising a' series be brought- -iiilo operative position to,

'supportlie latter nation of'iu'elies luider tlieirfinuer ends connected' yto saudi soeket'silpport subse rn Y Y ,75V

s relative*positions,by AmaIiip'iilzilioii o" 'leelmgserews for the-purpose specified.

os exemlingf'lgetweei said side members `alle ericls o'l tl1efslat's,` llnls iexiblywcoiithe slats together at their ends nml plus `passing througheoineid v ,Y moliliiig 'Lon'-A uetures eoiiifprismg a Chain siii l' slfll'so elli'e'r at their 'ends lng lugs projecting m for moldingv eoli- Y les eomprisiiig' v ziv se e jillel Asluts or bars l` .faposition and fpii'ori'lly crete and. ries of sul connected il sockel' suppe-r par'i rzuliiis roflvszeaelr 'being' adjustable 51ml iigmped to be'eonn'ectecl :it lieir outer enblsio wlieollps'ible form. lo

position for' the for- Lially` s fieserilieal; I

ll', Ari" improved collapsible ljorm for molding roderele nilflilre structures coni sistmg iiif'flie combination or .se^ series ol" substsmizilly lparallelslats or bars 'of 'ziovgulir shape fur Cross section` connecting links extending between the adJomiig' ends D roles iii sala'L Webs mul links `for the purpose l 'eorions of the sletsfssi'cl screws lie-infr )ro-k s Y Y l Y l c *L 'l '.llel-slets or bars :uw: jiifiepositior und links.` flexibly '6e @nel said! openings f "liifggs 'substanizizilly as ofV tlielslats and vconneetiiigg pins and loci:-v`

ing- 'sdreiis n adapted to passftliroiigli. elonf uo 'forni tensioningv rodswliielifexteiid from may loepivotillj7 lor bodily adjusted iii rei lation' to each other zmflloclelm desired i VICToR J; KEsoN. 

